Susan Bard, MD, is a board-certified general and procedural dermatologist with the American Board of Dermatology and a Fellow of the American College of Mohs Surgery. Some of the most common skin ...

In the United States, a rare disease is one that affects fewer than 200,000 people. Around 10,000 diseases fit this definition. However, there’s no single definition that applies everywhere in the ...

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May 13, 2026 Researchers have uncovered unexpectedly high levels of silicone-based pollutants called methylsiloxanes floating through the atmosphere across cities, rural regions, and even forests.

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced financial consultant. She has ...

What Is Chronic Lung Disease? A chronic lung disease is a type of disease that prevents the lungs and respiratory system from working correctly. The main job of the respiratory system is to take in ...